Returns the definite integral of f(x) from a
to b.
Operands:
f is any scalar
valued function defined in the closed interval [a ,b].
f may be complex, except in the case of infinite limit integration, and can be a function of any number
of variables.
x is the variable of integration. If x
has dimensions, then a and b
must have the same dimensions.
The method of numerical integration
is AutoSelected. To see which method is used, or to choose another algorithm,
right-click on the integral operator and choose from the resulting
menu.
Sharply-peaked integrands, discontinuous integrands, or integrands whose
shape is not readily characterized by a single length scale, may not evaluate
accurately. We recommend integrating such functions by parts. See methods
of numerical integration for more detail.
To evaluate double or multiple integrals, press &
multiple times.
This operator may also be evaluated symbolically
for integrals with a closed-form solution. Note that, in the symbolic case,
you may wish to use the indefinite integral operator by typing [Ctrl]I,
or using the Calculus toolbar.
